Structural Rescue for Code Retrieval Under Identifier Obfuscation

Tecnológico de Monterrey · jan 2026 – present

Frozen dual-tower contrastive alignment — a Qwen2.5-Coder text encoder against a T5 structural encoder over AST + data-flow graphs, trained with InfoNCE/MoCo so the gains come from structure rather than encoder adaptation. Stage 1 hits recall@1 = 0.977, and under identifier obfuscation the structural views pull retention from 47.9% back up to 74.6%.

CIMPS 2026 · Springer, Studies in Computational Intelligence · accepted 2026

A deterministic AST + execution verifier and a 31-prompt taxonomy benchmark for Qwen2.5-Coder at 0.5B, 1.5B and 3B. An iterative self-repair loop buys up to 7 points, McNemar-significant for the 1.5B and 3B models.

Discover Artificial Intelligence · Springer Nature · published 2026

Benchmarked full-day, 2-segment and 3-segment actigraphy feature strategies across several classifiers on the Depresjon dataset. KNN on 3-segment features reaches 83.0% F1.

LightGBM + Mistral AI

Debt recovery predictor at 91.3% accuracy, with personalized collection strategies — projected 40% productivity gain for collection teams.

ARIMA · NASA GISTEMP

Time series analysis of global temperature anomalies from 1880 to 2024, projecting 1.13°C sustained anomalies through 2030.

PCA · Mexican state data

A PCA-based infrastructure index for Mexican states, relating development to GDP per capita and poverty indicators.

K-means · Mean-Shift

Unsupervised identification of heart attack risk patterns using clustering methods.